Fe→Fe₂O₃→FeCl₃→Fe(OH)₃→Fe₂O₃→Fe→-FeCl₃→FeOHCl₂→FeCl₃
4Fe+3O₂=2Fe₂O₃
Fe₂O₃+6HCI=2FeCl₃+3H₂O
Fe₂O₃+6H⁺=2Fe³⁺+3H₂O
FeCl₃+3NaOH=Fe(OH)₃+3NaCI
Fe³⁺+3OH=Fe(OH)₃
Fe(OH)₃=Fe₂O₃+H₂O
Fe₂O₃+3C=2Fe+3CO₂
Fe+HCI=-FeCl₃+H₂
FeCl₃+H-OH=FeOHCl₂+HCI
Fe³⁺+H-OH=FeOH²⁺+H⁺
3FeOHCl₂+3HNO₃=2FeCl₃+ Fe(NO₃)₃+3H₂O
3FeOH²⁺+6CI⁻+ 3H =2Fe³⁺+2Cl₃+3H₂O